In Brod, Austria in time 1715th to 1780th build large imperial and royal border fortress ship the Sava river, which was conceived by Prince Eugene of Savoy. According to one estimate endurance marine fortress, in the case of the classical siege with full channel enemy took ten days to prepare for the attack, and 46 days to take over the entire fortress. Although as a military fort on the border fortress has never been able to prove and demonstrate its combat power, the bygone times of everyday military life that it was carried by numerous preserved fortifications. Brod Fortress was built by Vauban system. It's basically a square, and the system of defensive trenches gives her star-like layout.